Howl-O-Scream 2003 was the fifth edition of the event at Busch Gardens Africa. The event icon was F.E.A.R., a maniacal madman who controlled terror.
- Darkheart's Fear Fair
- Escape From Insanity: Resident's Revenge
- Ripper Row
- The Mortuary
- Demented Dimensions
- Eternal Reward
- The Whiplash
- Speed Demons
- Grisly Gardens
- Agony Express
- RIP TV, which had been featured at HOS 2001 and with a sequel in 2002, did not return. Instead, it was replaced by Eternal Reward.
- All of the haunted houses from 2002 had returned to the event, excluding Bloody Bayou, which had been replaced by Darkheart's Fear Fair, and Escape From Insanity, which instead had the sequel Escape From Insanity: Resident's Revenge.
|Howl-O-Scream 2003 Tampa|
|Characters: Fear (Event Icon)|
|Haunted Houses: Darkheart's Fear Fair • Escape From Insanity: Resident's Revenge • Tortured • Ripper Row • The Mortuary • Demented Dimensions|
|Scarezones: The Whiplash • Speed Demons • Cursed • Grisly Gardens • Agony Express|
|Shows: Fiends • Eternal Reward|
|Event Editions: 1999 • 2000 • 2001 • 2002 • 2003 • 2004 • 2005 • 2006 • 2007 • 2008 • 2009 • 2010•2011•2012•2013|